what would happen if our cell membranes required energy to move molecules like water into our cells? ( what would we need more have, or would this even help)?​

That would not help.

Explanation:

b c a d mark me

essentially, one bacterial cell splits into two daugurer cells. bacterial offspring don't need or get care from their parents because they are in a sense their own parents. that said, some bacteria can and do depend on other bacteria especially in harsh environments such as bacterial microfilms in hot water tanks.